AC Light lamp dimming and motor Dimmer Module – KSH 1,200 at HIMA TRONICS Mombasa – Top quality modules. Best electronics in Kenya. Shop now for Arduino, ESP32, sensors and IoT devices.
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AC Light lamp dimming and motor Dimmer Module

SKU: HMJ532 Category: Modules
KSH 1,200.00
In Stock
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Product Description

AC Light Lamp Dimming and Motor Dimmer Module

= Phase-Control Dimmer for Incandescent Lights and AC Motors =

This AC dimmer module uses phasecut control to regulate power delivered to incandescent lamps, dimmable LEDs, and AC motors, making it ideal for smart lighting, fan speed control, and home automation projects. Its optocouplerisolated design and microcontroller-friendly logic allow safe interfacing with Arduino, ESP32, and Raspberry Pi.

MicrocontrollerCompatible 3.3V/5V logic level with optocoupler isolation for safety
High Power Handling Supports loads up to 400W2000W and 8A-16A depending on the module model
AC Input: 110V or 220V at 50/60Hz
Load Types: Incandescent lamps, dimmable LEDs, AC motors, heating elements
Isolation: Optocoupler-based for microcontroller protection
Package Includes: Dimmer module and pin headers (software and cables not included)
Use RBDdimmer.h library in Arduino IDE for easy control

= Module Pinout =

PinFunctionDescription
VCCControl PowerConnect to 3.3V or 5V from MCU
GNDControl GroundConnect to MCU GND
PWM/SignalDimming InputReceive PWM or trigger signal
AC-INMains InputConnect to live and neutral of AC supply
AC-OUTLoad OutputConnect to lamp or motor
Zero-CrossDetectionProvides AC zero-cross reference for synchronization

Key Features

+PhaseCut Dimming Controls power by chopping the AC waveform

+Isolated Control Circuit - Protects microcontroller from AC mains

+DualLoad Support Works with both lighting and motor applications

+RBDdimmer Library Support - Simplifies coding with functions like setPower()

+ESPhome Compatible - Some models natively support Home Assistant integration

== Applications ==

  1. Smart lighting and mood lighting control
  2. Ceiling fan and AC motor speed regulation
  3. Home automation and IoT dimming systems
  4. Theater and stage lighting
  5. Temperature control for heating elements
Versatile Load Compatibility - Works with lamps, motors, and heating elements
Safe Isolation - Optocoupler separates control side from AC mains

√ Works with Arduino, ESP32, ESP8266, Raspberry Pi

√ Compatible with 110V and 220V AC mains

√ Library support simplifies dimming control

= Wiring and Usage Tips =

Safe connection guide:

  1. Connect AC mains (live and neutral) to AC-IN terminals
  2. Connect dimmable load (lamp or motor) to AC-OUT terminals
  3. Connect VCC to 3.3V or 5V from microcontroller
  4. Connect GND to microcontroller ground
  5. Connect PWM/Signal pin to a PWM-capable MCU pin

For zero-cross synchronization, some modules require a separate connection to a hardware interrupt pin . The RBDdimmer library handles this automatically .

Use a fuse for added protection
Non-dimmable LEDs are not compatible and may be damaged
Disconnect from AC before wiring

Troubleshooting

IssuePossible CauseSolution
Load does not dimNon-dimmable loadUse incandescent or dimmable LEDs
Flickering at low levelsIncompatible LEDIncrease minimum dimming level
Module overheatsLoad exceeds ratingReduce load or upgrade dimmer
No response to signalWiring errorVerify MCU connections and power